The mounted pump

Written by admin. Posted in Power Steering Pump

With bracketry oriented in both horizontal axis, the pump mount is very solid and has rubber isolation to prevent vibration in chassis.


Quick improvement

Written by admin. Posted in Fluid Heater

Here is a quick improvement in heating functionality and reduction of battery power for heating when driving. Instead of taking battery energy to heat up the cabin when you unplug and drive, imagine getting into a pre-heated cabin from power off the grid while still plugged in.  

The copper section inserts into this section of hose in the fluid heater plumbing loop.


Close look

Written by admin. Posted in Ranger Extender Pod

Here are the main components, sitting in their approximate positions. Simple shaft to shaft coupling is used to transfer the power efficiently and will need little or no maintenance.  All REX components fit neatly in the spare tire well with no protrusions into the BMW cabin.


Inspecting the module

Written by admin. Posted in Battery Pack

We had something to inspect with this module. Here is how we get access:


Range Extender Module

Written by admin. Posted in Ranger Extender Pod

REX – Range Extender Module. (or the new compact module to fit under your rear floor in place of some gas tanks – application specific …. stay tuned …)

For long trips, this is a necessary evil that allows a pure electric vehicle to travel continuously. This will be needed less than 5% of the drive time.

This fuel powered generator system can quickly charge up the pack while stationary at about a 1 minute per mile rate, or deliver enough power to drive at 65MPH continuously on the highway. Performance is unchanged because peak power is still coming from the pack.


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Phone: (619) 438-0018